public class chap2_5 {

    public static void main (String argv[]) {

    	System.out.println('\u0040');
    	System.out.println('\u03A9');


	String v="abc";
	System.out.println(v);
	for (int i =0; i<4; i++){
		//System.out.println(v[0]);
		}
	}

 

}
